ATmega32A Atmel Corporation, ATmega32A Datasheet - Page 347

• Manufacturer Part Number: ATmega32A
• Manufacturer: Atmel Corporation

Specifications of ATmega32A

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8155C–AVR–02/11
9
10 System Control and Reset .................................................................... 38
11 Interrupts ................................................................................................ 45
12 I/O Ports .................................................................................................. 50
13 External Interrupts ................................................................................. 69
14 8-bit Timer/Counter0 with PWM ............................................................ 73
Power Management and Sleep Modes ................................................. 33
8.9
8.10
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
10.1
10.2
10.3
10.4
10.5
11.1
11.2
12.1
12.2
12.3
12.4
13.1
14.1
14.2
14.3
14.4
14.5
Timer/Counter Oscillator ..................................................................................31
Register Description ........................................................................................32
Sleep Modes ....................................................................................................33
Idle Mode .........................................................................................................33
ADC Noise Reduction Mode ............................................................................34
Power-down Mode ...........................................................................................34
Power-save Mode ............................................................................................34
Standby Mode .................................................................................................35
Extended Standby Mode .................................................................................35
Minimizing Power Consumption ......................................................................35
Register Description ........................................................................................37
Resetting the AVR ...........................................................................................38
Reset Sources .................................................................................................38
Internal Voltage Reference ..............................................................................41
Watchdog Timer ..............................................................................................42
Register Description ........................................................................................42
Interrupt Vectors in ATmega32A .....................................................................45
Register Description ........................................................................................48
Overview ..........................................................................................................50
Ports as General Digital I/O .............................................................................51
Alternate Port Functions ..................................................................................55
Register Description ........................................................................................66
Register Description ........................................................................................69
Features ..........................................................................................................73
Overview ..........................................................................................................73
Timer/Counter Clock Sources .........................................................................74
Counter Unit ....................................................................................................74
Output Compare Unit .......................................................................................75
ATmega32A
ii